<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <!-- 1.导入Vue的包 -->
    <script src="./lib/vue-2.4.0.js"></script>
    <script src="./lib/vue-router-3.1.5.js"></script>
</head>

<body>

    <div id="app">
        <router-link to="/login">登录</router-link>
        <router-link to="/register">注册</router-link>
        <router-view></router-view>
    </div>
    <script>
        var login = {
            template: '<h1>登录组件</h1>'
        }

        var register = {
            template: '<h1>注册组件</h1>'
        }

        var router = new VueRouter({
            routes: [{
                    path: '/login',
                    component: login
                },
                {
                    path: '/register',
                    component: register
                }
            ]
        })

        var vm = new Vue({
            el: '#app',
            data: {
                msg: ''
            },
            methods: {

            },
            router,
            watch: {
                //this.$route.path
                '$route.path': function (newVal, oldVal) {
                    console.log(newVal + "---" + oldVal)

                    if (newVal === '/login') {
                        console.log('欢迎进入登录页面');
                    } else if (newVal === '/register') {
                        console.log('欢迎进入注册页面')
                    }

                }
            }
        });
    </script>

</body>

</html>